She has been endeavouring to heighten awareness of the crippling disease, osteoporosis. She lost her mother to this painful, wasting disease which, unfortunately, is diagnosed usually when an older person fractures a femur or vertebrae. As I've mentioned before, Camilla exhibits many of the early signs of this horrible illness. I imagine she will already been on treatment which can not only halt, but in some cases, reverse the progress.
If nothing else, I think this is something very worthwhile.
She also appears to have helped fractures in a very disfunctional family and the Prince of Wales seems to have a much better relationship with his parents - even at this late stage.
tsaria